研究目的
Investigating the rapid size-focusing of gold nanoclusters with the addition of an oxidant, K3[Fe(CN)]6, and optimizing the conditions for this process.
研究成果
The addition of K3[Fe(CN)]6 significantly improves the rate of size-focusing of gold nanoclusters, with optimized conditions leading to monodisperse products. The oxidant's role may involve modifying the Au(I):Au(0) ratio, facilitating faster size interconversion.
研究不足
The role of the oxidant in the rate accelerations is unclear, and the study suggests further investigation is needed to understand the mechanism fully.
1：Experimental Design and Method Selection:
The study involved the addition of K3[Fe(CN)]6 to achieve rapid size-focusing of gold nanoclusters. The conditions were optimized, and the role of the oxidant was proposed.
2：Sample Selection and Data Sources:
Aun(SG)m was used as the gold precursor with various thiols for ligand exchange.
3：List of Experimental Equipment and Materials:
UV–VIS-NIR spectrometer, MALDI-TOF–MS, SEM–EDX, and various chemicals including K3[Fe(CN)]6, thiols, and solvents.
4：Experimental Procedures and Operational Workflow:
The reaction mixture was heated at specific temperatures for a set time, followed by separation and washing steps.
5：Data Analysis Methods:
UV–Vis–NIR absorption spectra, MALDI-MS, and SEM–EDX were used for characterization.
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